Computing mechanism



E. H. J. LORENZ.

COMPUTING MECHANISM. APPLICATION 'HLED DEC. 26, I919.

' 1,372,707 Patented Lia-1229,1921.

of \Visconsin have invented a certain new lmprovement hundred unit depressions of theindicator on ERNST H, J. LORENZ. OF MADISON.

SISTING OF GEOBQE B. H

J'AIIYES L.

WISCONSIN, AN D i WISCONSIN.

WISCONSIN, ASSIGNOR TO A COPARTNERSHIP CON- ARRIS AND G HARRIS AND JOHN H. HARRIS, BOTH OF ELKHOILN,

EORGE D. PUFFER. BOTH OF \VAUKESHA.

COMPUTING MECKANISM.

Specification of Letters Patent.

To all when}. it may colwem."

Be it known that I, En 1\'s'r H. J. Lorenz,

a citizen of tl'ie United States residing at Madison, in the county-of Dame and State and useful.

'in' Computing Mechanism, of which the'following is a full,

clear, concise, and exact description, reference being bad to the accompanying drawingiii, forming a part'ofthisspecification.

invention mechan sm for' use. 1

relates to ,a computing connection with the computation of ,oreriam or inflation in volume of 'the=- frozen 'mercial manufacture of ice, cream.

well .known, the, mix,

-of manutacturmp ice cream,

mix in the comduring" the process oftentimesbecomes inflated involume to such an extent as to render the final product .unsalablc. It is therefore *veryimportunt that the actual increase in vohnn of the mimwhen frozen shall be determined with accuracy' The volume fluctuations are usually deter possible.

mined by the followingmethod. 'A weighingmechanism is used which is so adjusted that when a beaker or hydrometer jar is placed thereon the indicator-ofthe weighm mechanismwlllcause a zero depression,

as indicated onthe scale. is then filled with unfrozen mix untll'theindicator is depressed [The jar or beaker to apomt exactly opposite the one hundred units point of the scale on the weighing mechanism.

burette is generally utilized to add unfrozen mix drop amount is 0 drop until exactly the rcqiured tained. At this point the scale division on the hydrometer jar or beaker is recorded. After the batch is frozen the jar or beaker isfilled with frozen mix until 'aone hundred units depression of the scale is again obtained.

At this point the scale division on the jar or beaker is again noted. The percentage of increase in volume is, of course, obtained by a comparison of the two volumes which were recorded.

My I invention obviates out amounts of. unfrozen and weighing the necessity of frozen mixes which will produce exactly one the,scale.

of a given capacity is filled to the brim with dicator on the scale is hen at random given" lnicnted Mar. 29. 1921.

Application flledlleccmber 26, 1919. Serial No. 347,384.

Therefore the percentage of inflation in this instance is twenty-five per cent.

The old method of computing the percentage of inflation is in itself not exceedingly complicated. However, when it is considered that such com 'iutations are repeated hundreds of times, where ice cream is manufactured commercially, it is essential that this work be minimized as much as In the following detailed description, reference is made to the accompanying draw in illustrating my invention, whereinigure 1 is a front elevation of the improved computing mechanism of my inven- Throughout the views, similar reference numerals refer to similar parts.

Referring, to Figs. I and 2, 5 indicates a base upon which is secured, in any suitable manner, as for example by screws, as shown, a vertical upright (3, to which is pivoted at 7 and 8 the arms 9 and ll), respectively. The arms 9 and 10 are pivoted at their free ends to a vertical plate 11 which carries at its upper edge and secured thereupon a horizontally extending platform 12, which is adapted to receive the-substances or objects to be weighed. If desired, a brace 13 may be provided for the upright (i. The base 5 is preferably of wood, although any other s'uitable nmterial may be used while the parts 6, 9, 10, 11,12 and 13 are preferably of sheet iron or other suitable material. A steel tension spring 14 is secured between the that the spring 14 must be of such a tension as to roduce, when an objcict is placed upon the p atform 12, pro ortional depressions of the indicator 15. T e indicator 15 which-is arrangedto travel over a scale to be'presently described, comprises a horizontal arm 16, which is suitably secured to the late 11 and is bent at right angles at, its rec ends to provide means between which a thread or wire 17 may be helll in any suitable mariner.

It will be understood that, while I have illustrated a weighing mechanism employing springs, my invention is equally applicable to springless balances.

A vertical faceplate 18 .is secured to the base 5 by screwsas shown. Pivoted to the plate 18 at its upper end-atthe point 19 is a scale 20 held in a suitable holder 21.

In the drawing, I have shown the holder 21 as being a sheet metal member'bent upon itself at one side thereof, to form a means to retain the paper-strip or scale 20 provided with the required indlcia.

The scale 20 is so arranged that its zero graduation register's with the thread 01' wire 17 when there is nothing in'thcbcaker lastin on the platform 12.

hile I in nowise limit myself to any particular form of-scale l have here illustrated the scale 20 as being graduated from zero to one hundred, the one hundred point corresponding to the greatest possible depression of the'indicator.

The operation of the mechanism just described will perhaps be best understood when taken in connection with the following exam 1e.

ssume that the sample beaker full of unfrozen mix when placedon the platform 12 depresses the indicator to the point indicated in figure 1 by the dotted line A- A. It will be seen that this line registers ap iroximatel y with the 87.5 units. point of the scale 20. The scale 20 is then grasped and turned in a counter-clockwise direction to the position indicated by dotted lines in Fig. 1 in which position the one hupdred unit point of the scale 20 registers with the thread or wire 17 of the indicator which is represented by the dotted line A-d. When the batch is frozen another sample beaker full is taken. Assume that when placed upon the platform 12 this second sample depresses the indicator to the )osition indicated by the dotted line 13-] in Fig. I. It will be seen that the line Bl crosses the Sonic 20 (full linc)-at the seventy units point. The line B-B also crosses the scale 20 (dotted lino) fltlllt. point eighty. it will appear that the percentage of inflation in volume is icadily derived by simply comparing the two values one hunzero to one hundred, thespecific form of scale usedin connection with my improved mechanism is unmatemahand it might be found advantageous in some instances to utilize a scale in which the increases in volume of the substance may be determined directly.

Having thus described my invention, what I claim as new and desire to secure by- Letters Patent of the United States is:'

1. A. computing mechanism comprisin a weighing mechanism having a horizontiilly disposed indicator movable downwardly in proportion to the weight of the object weighed, and a scaled member pivoted at its upper end and coiiperating with said indi cator, whereby by chan ing the inclination of the member the signi cance of the indications on the scale thereof may be varied.

2. A computing mechanism comprising a weighing mechanism having a rectilinear in- (licator-movable in a constant direction in proportion to the weight "of the object weighed, and extending at right angles to the direction of its movcment, and a scale member pivoted at its end registering with the zero point of the indicator and coii crating with said indicator,-whereby by 0 auging the osition of the indicator, the significance-ot the indications on the scale thereof may be varied. i I I 3. Means for computing the overrun in ice cream and other frozen substances comprisin a weighing mechanism having a movab e indicator extending at right angles to its direction ofmovement, and a graduated member along which said indicator is adapted to travel, the said member being pivoted at a point registering with its zero graduation, whcrcby it may be turned so that's iven graduation on said member can be 

